Genuine ULKA pumps. Available through Hydronics Depot.

Ulka Pumps are compact electromagnetic pumps commonly used in coffee machines, espresso makers, steam irons, autoclave sterilizers, carpet cleaners, soda dispensers, and other equipment requiring high- or low-pressure water flow.

Each Ulka Pump is identified by a label with letters and numbers such as EAX5, EX5, or EFX5. Check the full model number, voltage, and frequency before choosing a replacement.

The EX5 and EAX5 are distinct pump configurations. Their performance and electrical specifications vary by exact model and version. Refer to the corresponding manufacturer datasheet before selecting a replacement.

No. Compatibility depends on the machine’s specifications, including voltage, frequency, pressure, flow, and physical connections. Confirm your original model number or consult the equipment manufacturer.

Service life depends on operating conditions, water quality, application, and duty cycle. Follow the equipment manufacturer’s maintenance recommendations.

Possible causes include power supply faults, deposits or blockages in the system, overheating, and wear. Have the equipment diagnosed before ordering a replacement pump.

Replacement involves electrical and water connections. Follow the equipment manufacturer’s instructions, and use a qualified service technician when appropriate.

ULKA pumps are not intended to be opened or repaired. Do not disassemble, modify, or rebuild a pump; replace it with the correct complete unit.

Voltage and frequency vary by model. Popular configurations include 120 V and 230 V; other configurations exist. Match the exact pump label and datasheet.

Hydronics Depot Inc. supplies genuine ULKA pumps and ships internationally. Choose the exact model and electrical configuration in the HDI ULKA pump collection.

Noise may result from air in the system, improper installation, restrictions, or equipment faults. Have the system checked before replacing the pump.

ULKA pumps are typically installed as components in OEM equipment. Refer to the equipment manufacturer or seller for the applicable warranty terms.

Operating pressure depends on the model. Many espresso-machine pump models are associated with approximately 15 bar, but always use the exact model datasheet.

Permitted fluid temperatures depend on the exact model. Check the temperature marking and manufacturer datasheet; do not assume all ULKA pumps support hot-water service.